Cutting head of efficient coal rock heading machine
By designing the 'U' font base and spiral plate structure on the cutting head of the excavator, combining the dust reduction component and the cutting component, the pump spray water with the pump, the problem of dust and particulate pollution during the cutting head of the excavator is solved, and the problem of dust and particulate pollution during the cutting head of the excavator is improved. The stability and health safety of the cutting head.
Patent Information
- Application Number
- CN202420500321.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The cutting head of the existing boring machine produces a large amount of dust and particulate matter during the cutting process, resulting in pollution of the working environment and affecting the health of the operators.
A cutting head of an efficient coal rock boring machine is designed, using a 'U' shaped base and spiral plate structure, combining dust reduction components and cutting components, and spraying pressurized water into the dust reduction hole through a water pump to achieve humidification of dust and particulate matter. , reduce its floating everywhere.
It effectively reduces the pollution of dust and particulate matter on the working environment, ensures the health of workers, and improves the stability and durability of the cutting head through the design of wear-resistant plates and cutting blades.
Smart Images
Figure CN222276653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cutting heads for tunnel boring machines, and in particular to a high-efficiency cutting head for coal and rock tunnel boring machines. Background Art
[0002] The cutting head of a coal and rock tunneling machine is a key device used in underground mining and tunnel engineering of coal mines, rocks, etc. It is mainly responsible for cutting and crushing coal or rocks for subsequent transportation and processing.
[0003] The existing tunnel boring machine cutting head includes a cutting head body, guide vanes and a cutting head tooth seat arranged on the cutting head body, a plurality of cutting head body wear-resistant plates are evenly arranged on the circumferential direction of the lower edge of the bottom outer wall of the cutting head body, and a plurality of guide vane wear-resistant plates are evenly arranged along the bottom outer edge from the starting end to the end of the guide vane.
[0004] The cutting head of the tunnel boring machine cuts the coal and rock by rotating and pushing. The guide blades guide the cut coal and rock to reduce their accumulation. However, a large amount of dust and particulate matter will be generated during the cutting process of the cutting head. The dust and particulate matter will fly everywhere, polluting the working environment and affecting the health of the operators. Utility Model Content
[0005] The utility model provides a high-efficiency cutting head for a coal and rock tunneling machine, which solves the problem in the related art that dust and particles generated during the cutting process of the cutting head are scattered everywhere, polluting the working environment and affecting the health of operators.
[0006] The technical solution of the utility model is as follows: a high-efficiency coal and rock tunneling machine cutting head, comprising a base, the cross section of the base is a "U"-shaped structure, a spiral plate is arranged on the outer wall of the base, the spiral plate is arranged in a spiral shape along the axial direction of the base, a cutting component for enhancing its cutting ability is arranged on the spiral plate, and a dust reduction component for dust reduction is also arranged on the base;
[0007] The dust reduction component includes a dust reduction pipe, a mounting groove is provided on the base, a plurality of dust reduction holes are provided on the base, the dust reduction holes are arranged in sequence along the center of the mounting groove, the dust reduction holes are connected to the mounting groove, the dust reduction pipe is located inside the mounting groove, the dust reduction pipe is fixedly connected to the mounting groove, and a water pump is connected to the dust reduction pipe.
[0008] Furthermore, the cutting assembly includes a cutting block, the cross section of the cutting block is a "U"-shaped structure, the cutting block is fixedly connected to the spiral plate, and the cutting block is provided with a cutting blade, which is fixedly connected to the cutting block.
[0009] Furthermore, a wear-resistant plate is provided on one side of the spiral plate away from the cutting assembly and the base, and the wear-resistant plate is fixedly connected to the spiral plate.
[0010] Furthermore, a filter groove is provided on the inner wall of the dust removal hole, a filter net is provided inside the filter groove, and the filter net is fixedly connected to the base.
[0011] Furthermore, the cutting block and the cutting blade are both provided with discharge holes to prevent material blockage, and the discharge hole of the cutting block is connected with the discharge hole on the cutting blade.
[0012] Furthermore, the spiral plate and the cutting block are an integrated structure.
[0013] Furthermore, the cutting blade has a truncated cone structure.
[0014] The working principle and beneficial effects of the utility model are as follows: when the cutting head is rotating, the spiral plate of the cutting head rotates, and the spiral plate drives the cutting assembly to cut the coal rock. At the same time, the water pump is started, and the water pump extracts and pressurizes water. The pressurized water is transported to each dust reduction hole through the dust reduction pipe, and is sprayed out through each dust reduction hole. The sprayed water sprays and humidifies the dust and particulate matter generated by the cutting head, so that the dust and particulate matter will not fly around, thereby reducing the pollution of the working environment by dust and particulate matter and ensuring the health of the operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 for Figure 1 The sectional view at point A in FIG.
[0018] Figure 3 It is a top view of the utility model;
[0019] Figure 4 for Figure 3 The cross-sectional view at point E in FIG.
[0020] Figure 5 for Figure 4 Enlarged view of point B in the figure.
[0021] In the figure: 1. dust suppression pipe; 2. water pump; 3. base; 4. spiral plate; 5. cutting block; 6. cutting blade; 7. discharge hole; 8. wear-resistant plate; 9. dust suppression hole; 10. filter tank; 11. filter net; 12. installation tank. DETAILED DESCRIPTION
[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] like Figure 1 to Figure 5 As shown, this embodiment proposes a high-efficiency coal and rock tunneling machine cutting head, including a base 3, the cross section of the base 3 is a "U"-shaped structure, the "U"-shaped structure is evenly distributed under the external force, and can provide good structural strength, thereby increasing the stability and durability of the cutting head. The conical base 3 structure can effectively reduce the accumulation of coal and rock during the cutting process, which is conducive to keeping the work site clean and tidy, and reduces the difficulty of cleaning work. A spiral plate 4 is provided on the outer wall of the base 3, and the spiral plate 4 is spirally arranged along the axial direction of the base 3. A cutting component for enhancing its cutting ability is provided on the spiral plate 4. A dust reduction component for dust reduction is also provided on the base 3. The dust reduction component specifically includes a dust reduction pipe 1, a mounting groove 12 is provided on the base 3, and a plurality of dust reduction holes 9 are provided on the base 3. Each dust reduction hole 9 is arranged in sequence along the center of the mounting groove 12, and each dust reduction hole 9 is connected with the mounting groove 12. The dust reduction pipe 1 is located inside the mounting groove 12, and the dust reduction pipe 1 is fixedly connected to the mounting groove 12. A water pump 2 is provided on the dust reduction pipe 1, and the dust reduction pipe 1 is connected with the water pump 2. The water pump 2 is installed on the tunneling machine. A filter groove 10 is provided on the inner wall of the dust reduction hole 9, and a filter screen 11 is provided inside the filter groove 10. The filter screen 11 is fixedly connected to the base 3, and the filter screen 11 protects the dust reduction hole 9 to prevent dust and impurities from entering the dust reduction hole 9 and clogging the dust reduction hole 9.
[0024] In this embodiment, a wear-resistant plate 8 is provided on one side of the spiral plate 4 away from the cutting assembly and the base 3. The wear-resistant plate 8 is fixedly connected to the spiral plate 4. The spiral plate 4 is the core component of the cutting head, and its normal operation is crucial to the entire cutting process. The setting of the wear-resistant plate 8 can provide an additional protective layer to avoid direct contact and wear of coal and rock, reduce damage to the spiral plate 4, and thus extend its service life. The wear-resistant plate 8 preferably uses a high manganese steel plate, which has excellent hardness and wear resistance and can effectively resist the wear of coal and rock and the impact and friction generated during the cutting process. This makes the high manganese steel plate an ideal material for the cutting head of a coal and rock tunneling machine. In addition to hardness and wear resistance, the high manganese steel plate also has good toughness and impact resistance. During the cutting process, the impact and vibration of the coal and rock may have a greater impact on the cutting head, and the high manganese steel plate can effectively absorb and mitigate these impact forces and provide better protection.
[0025] The cutting assembly for enhancing the cutting ability of the spiral plate 4 in this embodiment specifically includes a cutting block 5, which is fixedly connected to the spiral plate 4. The cross section of the cutting block 5 is a "U"-shaped structure. The design of the "U"-shaped structure can provide a larger contact area, and the cutting block 5 can be more stable when in contact with the coal rock. This can reduce the vibration and shaking during cutting, improve the overall stability, and ensure the accuracy of cutting. A cutting blade 6 is provided on the cutting block 5, and the cutting blade 6 is fixedly connected to the cutting block 5. The cutting blade 6 is a truncated cone structure. The truncated cone-shaped cutting blade 6 can make the cutting force evenly distributed on the blade surface, increasing the stability and efficiency of cutting. This can reduce the vibration and impact generated during cutting, and reduce the noise and loss of the equipment. The truncated cone-shaped cutting blade 6 can adapt to coal rocks of different hardness and thickness, and has good versatility. Whether it is cutting soft coal or hard coal, the cutting blade 6 can effectively cut the coal rock, and has strong adaptability. The spiral plate 4 and the cutting block 5 are an integrated structure, which can provide higher overall rigidity and stability. This can reduce the vibration and deformation during cutting, making the cutting process more stable and accurate. The integrated design can reduce the friction and gap between the components, so that the contact between the cutting blade 6 and the coal rock is closer. This can improve the cutting efficiency, reduce energy loss, and improve work efficiency. The cutting block 5 and the cutting blade 6 are both provided with discharge holes 7 to prevent blockage. The discharge hole 7 of the cutting block 5 is connected with the discharge hole 7 on the cutting blade 6. The rotation of the base 3 drives the cutting block 5 and the cutting blade 6 to rotate together. The cutting block 5 and the cutting blade 6 cut the coal rock on the side of the base 3. The coal rock cut by the cutting blade 6 and the cutting block 5 is discharged through the discharge hole 7. The discharge hole 7 reduces the accumulation and adhesion of coal rock during the cutting process, and prevents blockage. This can maintain the normal working state of the equipment, improve work efficiency, and reduce maintenance costs.
[0026] Specifically, the implementation process of this embodiment is as follows: when the base 3 is rotating, the base 3 rotates and drives the spiral plate 4 to rotate together, and the spiral plate 4 drives the cutting block 5 to rotate together, and the cutting block 5 and the spiral plate 4 cut the coal rock, and a small part of the cut coal rock is discharged through the discharge hole 7, reducing the possibility of coal rock adhering to the cutting block 5. One end of the dust reduction pipe 1 is connected to the water tank on the tunneling machine, and the water pump 2 is started. The water pump 2 absorbs and pressurizes the water in the water tank. At the same time, the water pump 2 is started. The water pump 2 extracts and pressurizes the water. The pressurized water is transported to each dust reduction hole 9 through the dust reduction pipe 1, and is sprayed out through each dust reduction hole 9. The sprayed water sprays and humidifies the dust and particulate matter generated by the cutting head, so that the dust and particulate matter will not float around.
[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high-efficiency coal and rock tunneling machine cutting head, comprising a base (3), characterized in that: The cross section of the base (3) is in a "U"-shaped structure. A spiral plate (4) is provided on the outer wall of the base (3). The spiral plate (4) is arranged in a spiral shape along the axial direction of the base (3). A cutting component for enhancing its cutting ability is provided on the spiral plate (4). A dust reduction component for reducing dust is also provided on the base (3); The dust reduction component comprises a dust reduction pipe (1), a mounting groove (12) is provided on the base (3), a plurality of dust reduction holes (9) are provided on the base (3), the dust reduction holes (9) are arranged in sequence along the center of the mounting groove (12), the dust reduction holes (9) are connected to the mounting groove (12), the dust reduction pipe (1) is located inside the mounting groove (12), the dust reduction pipe (1) is fixedly connected to the mounting groove (12), and the dust reduction pipe (1) is connected to a water pump (2).
2. The high-efficiency coal and rock tunneling machine cutting head according to claim 1, characterized in that: The cutting assembly comprises a cutting block (5), the cross section of the cutting block (5) is in a U-shaped structure, the cutting block (5) is fixedly connected to the spiral plate (4), the cutting block (5) is provided with a cutting blade (6), and the cutting blade (6) is fixedly connected to the cutting block (5).
3. The high-efficiency coal and rock tunneling machine cutting head according to claim 1, characterized in that: A wear-resistant plate (8) is provided on the side of the spiral plate (4) away from the cutting assembly and the base (3), and the wear-resistant plate (8) is fixedly connected to the spiral plate (4).
4. The high-efficiency coal and rock tunneling machine cutting head according to claim 1, characterized in that: A filter groove (10) is provided on the inner wall of the dust removal hole (9), a filter screen (11) is provided inside the filter groove (10), and the filter screen (11) is fixedly connected to the base (3).
5. The high-efficiency coal and rock tunneling machine cutting head according to claim 2, characterized in that: The cutting block (5) and the cutting blade (6) are both provided with a discharge hole (7) for preventing material blockage, and the discharge hole (7) of the cutting block (5) is communicated with the discharge hole (7) on the cutting blade (6).
6. A high-efficiency coal and rock tunneling machine cutting head according to claim 1 or 2, characterized in that: The spiral plate (4) and the cutting block (5) are an integral structure.
7. The high-efficiency coal and rock tunneling machine cutting head according to claim 2, characterized in that: The cutting blade (6) is in a truncated cone structure.